author | Claus Gittinger <cg@exept.de> |
Thu, 02 May 2002 11:18:28 +0200 | |
changeset 2529 | 9501a63ce16c |
parent 2512 | 57d79580ff7f |
child 2582 | edd71c89378d |
permissions | -rw-r--r-- |
104 | 1 |
" |
2 |
COPYRIGHT (c) 1995 by Claus Gittinger |
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2179 | 3 |
All Rights Reserved |
104 | 4 |
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5 |
This software is furnished under a license and may be used |
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6 |
only in accordance with the terms of that license and with the |
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7 |
inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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9 |
other person. No title to or ownership of the software is |
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10 |
hereby transferred. |
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11 |
" |
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||
2179 | 13 |
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2223 | 14 |
"{ Package: 'stx:libwidg' }" |
2179 | 15 |
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104 | 16 |
Controller subclass:#VariablePanelController |
2179 | 17 |
instanceVariableNames:'movedHandle prevPos clickPos saveCursor startResizing resizeMode' |
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18 |
classVariableNames:'' |
582 | 19 |
poolDictionaries:'' |
20 |
category:'Interface-Support-Controllers' |
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104 | 21 |
! |
22 |
||
23 |
!VariablePanelController class methodsFor:'documentation'! |
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24 |
||
25 |
copyright |
|
26 |
" |
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27 |
COPYRIGHT (c) 1995 by Claus Gittinger |
|
2179 | 28 |
All Rights Reserved |
104 | 29 |
|
30 |
This software is furnished under a license and may be used |
|
31 |
only in accordance with the terms of that license and with the |
|
32 |
inclusion of the above copyright notice. This software may not |
|
33 |
be provided or otherwise made available to, or used by, any |
|
34 |
other person. No title to or ownership of the software is |
|
35 |
hereby transferred. |
|
36 |
" |
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2179 | 37 |
|
104 | 38 |
! |
39 |
||
150 | 40 |
documentation |
41 |
" |
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42 |
An abstract class for variablePanel controllers; |
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43 |
normally, not used directly by applications, these are created automatically |
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44 |
whenever a variablePanel is created. |
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45 |
Instances are responsible for tracking the mouse pointer and resize the |
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46 |
views (a panel) subviews as appropriate. |
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582 | 47 |
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48 |
[author:] |
|
49 |
Claus Gittinger |
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150 | 50 |
" |
1722 | 51 |
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1720 | 52 |
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53 |
! ! |
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54 |
||
104 | 55 |
!VariablePanelController methodsFor:'event handling'! |
56 |
||
161 | 57 |
buttonMotion:state x:bx y:by |
104 | 58 |
"mouse-button was moved while pressed; |
2179 | 59 |
clear prev handleBar and draw handle bar at new position |
60 |
" |
|
61 |
|nextPos layout entered hindex opaqueResizing| |
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62 |
||
63 |
state == 0 ifTrue:[ |
|
64 |
view snapMode isNil ifTrue:[^ self]. |
|
104 | 65 |
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2529 | 66 |
movedHandle := self detectHandleIndexAt:bx y:by. |
2179 | 67 |
movedHandle isNil ifTrue:[^ self]. |
2529 | 68 |
"/ |
69 |
"/ hindex ~~ movedHandle ifTrue:[ |
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70 |
"/ self pointerLeave:0. |
|
71 |
"/ movedHandle := hindex. |
|
72 |
"/ ]. |
|
73 |
"/ movedHandle isNil ifTrue:[^ self]. |
|
104 | 74 |
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2179 | 75 |
"check entering click button ...." |
76 |
layout := view snapLayoutAt:movedHandle. |
|
77 |
entered := layout notNil and:[layout containsPointX:bx y:by]. |
|
104 | 78 |
|
2529 | 79 |
entered ~~ (self isSnapEntered) ifTrue:[ |
2179 | 80 |
entered ifTrue:[ |
81 |
saveCursor := view cursor. |
|
2239 | 82 |
view cursor:(Cursor hand). |
2179 | 83 |
] ifFalse:[ |
84 |
view cursor:saveCursor. |
|
85 |
saveCursor := nil. |
|
86 |
]. |
|
87 |
view drawSnapAt:movedHandle |
|
88 |
]. |
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89 |
^ self |
|
90 |
]. |
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91 |
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2179 | 92 |
(movedHandle isNil or:[resizeMode isNil]) ifTrue:[^ self]. |
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diff
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93 |
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94 |
"/ kludge: workaround Windows bug, which sends a MOUSEMOVE |
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|
95 |
"/ (with same coordinate as previous MOUSE_DOWN |
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96 |
view orientation ~~ #vertical ifTrue:[ |
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parents:
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97 |
clickPos == bx ifTrue:[^ self]. |
2510 | 98 |
prevPos == bx ifTrue:[^ self]. |
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parents:
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99 |
] ifFalse:[ |
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parents:
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100 |
clickPos == by ifTrue:[^ self]. |
2510 | 101 |
prevPos == by ifTrue:[^ self]. |
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parents:
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102 |
]. |
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parents:
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103 |
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2179 | 104 |
"RESIZING" |
105 |
||
106 |
"compute new position ...." |
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107 |
||
108 |
nextPos := self checkedHandleMovementX:bx y:by. |
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2252 | 109 |
"/ nextPos = prevPos ifTrue:[ |
110 |
"/ ^ self |
|
111 |
"/ ]. |
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112 |
||
2179 | 113 |
opaqueResizing := UserPreferences current opaqueVariablePanelResizing == true. |
114 |
||
115 |
resizeMode == #active ifTrue:[ |
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116 |
"check position changed ..." |
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2252 | 117 |
"/ nextPos > 10 ifTrue:[ |
118 |
"/ (prevPos - nextPos) abs < 2 ifTrue:[^ self]. |
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119 |
"/ ]. |
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2179 | 120 |
opaqueResizing ifFalse:[ |
121 |
self doInvertHandle "undo the last invert" |
|
122 |
] |
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123 |
] ifFalse:[ |
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2252 | 124 |
"/ nextPos > 10 ifTrue:[ |
125 |
"/ (clickPos - nextPos) abs < 5 ifTrue:[^ self]. |
|
126 |
"/ ]. |
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2179 | 127 |
resizeMode := #active. |
131 | 128 |
|
2179 | 129 |
"/ restore the snap cursor |
2529 | 130 |
self isSnapEntered ifTrue:[ |
2179 | 131 |
view grabPointerWithCursor:saveCursor. |
132 |
saveCursor := nil. |
|
133 |
view drawSnapAt:movedHandle. |
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] |
|
135 |
]. |
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136 |
prevPos := nextPos. |
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1720 | 137 |
|
2179 | 138 |
opaqueResizing ifFalse:[ |
139 |
self doInvertHandle. |
|
140 |
] ifTrue:[ |
|
141 |
self doResize. |
|
142 |
]. |
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fix for windows MOUSE_MOVE event bug
Claus Gittinger <cg@exept.de>
parents:
2284
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143 |
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fix for windows MOUSE_MOVE event bug
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parents:
2284
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|
144 |
"Modified: / 24.8.2001 / 15:34:57 / cg" |
104 | 145 |
! |
146 |
||
200 | 147 |
buttonPress:button x:bx y:by |
2179 | 148 |
"button was pressed - setup resizing if a handle is hit |
149 |
" |
|
2236 | 150 |
|handleView hindex isMin isMax layout| |
200 | 151 |
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2179 | 152 |
((button == 1) or:[button == #select]) ifFalse:[ |
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movedHandle isNil ifTrue:[ |
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parents:
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154 |
self pointerLeave:0. |
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parents:
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155 |
super buttonPress:button x:bx y:by. |
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parents:
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156 |
]. |
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parents:
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diff
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|
157 |
^ self. |
2179 | 158 |
]. |
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parents:
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diff
changeset
|
159 |
|
2510 | 160 |
view compressMotionEvents:true. |
2179 | 161 |
hindex := self detectHandleIndexAt:bx y:by. |
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do nothing if pointer was never moved;
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162 |
|
2529 | 163 |
"/ movedHandle notNil ifTrue:[ |
164 |
"/ hindex ~~ movedHandle ifTrue:[self pointerLeave:0]. "restore the cursor" |
|
165 |
"/ ]. |
|
200 | 166 |
|
2179 | 167 |
( (movedHandle := hindex) notNil |
168 |
and:[(view canChangeExtentOfViewAt:movedHandle)] |
|
169 |
) ifFalse:[ |
|
170 |
^ self |
|
171 |
]. |
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2236 | 172 |
|
2179 | 173 |
view grabPointerWithCursor:(view cursor). |
174 |
handleView := view subViews at:movedHandle. |
|
175 |
||
176 |
"setup resizeing" |
|
177 |
resizeMode := #init. |
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178 |
|
2179 | 179 |
view orientation ~~ #vertical ifTrue:[ |
180 |
clickPos := bx. |
|
181 |
prevPos := handleView right. |
|
182 |
] ifFalse:[ |
|
183 |
clickPos := by. |
|
184 |
prevPos := handleView bottom. |
|
185 |
]. |
|
186 |
prevPos := prevPos + (view barHeight + 1 // 2). |
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parents:
2005
diff
changeset
|
187 |
|
2529 | 188 |
self pointerEnter:0 x:bx y:by. |
189 |
||
190 |
self isSnapEntered ifTrue:[ |
|
2179 | 191 |
"there is a snap under the cursor; redraw selected" |
2236 | 192 |
view snapMode == #both ifTrue:[ |
193 |
layout := view snapLayoutAt:movedHandle. |
|
194 |
view orientation == #vertical ifTrue:[ |
|
195 |
isMax := bx > (layout right - (layout width//3)). |
|
196 |
isMin := bx < (layout left + (layout width//3)). |
|
197 |
] ifFalse:[ |
|
198 |
isMax := by > (layout bottom - (layout height//3)). |
|
199 |
isMin := by < (layout top + (layout height//3)). |
|
200 |
]. |
|
201 |
handleView objectAttributeAt:#snapPart put:(isMin ifTrue:[#left] ifFalse:[ isMax ifTrue:[#right] ifFalse:[#middle]]). |
|
202 |
]. |
|
2529 | 203 |
view drawSnapAt:movedHandle. |
204 |
] ifFalse:[ |
|
205 |
(UserPreferences current opaqueVariablePanelResizing == true) |
|
206 |
ifFalse:[ |
|
207 |
self doInvertHandle. |
|
208 |
resizeMode := #active. |
|
209 |
]. |
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2512
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210 |
]. |
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parents:
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211 |
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212 |
"Modified: / 24.8.2001 / 15:35:27 / cg" |
200 | 213 |
! |
214 |
||
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diff
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|
215 |
buttonRelease:button x:bx y:by |
104 | 216 |
"end bar-move" |
217 |
||
2179 | 218 |
|subViews layout aboveView| |
1871 | 219 |
|
2179 | 220 |
((button == 1) or:[button == #select]) ifFalse:[ |
2284
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parents:
2260
diff
changeset
|
221 |
movedHandle isNil ifTrue:[ |
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parents:
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diff
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|
222 |
resizeMode := nil. |
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parents:
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diff
changeset
|
223 |
super buttonRelease:button x:bx y:by |
a0fe280353ba
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
224 |
]. |
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Claus Gittinger <cg@exept.de>
parents:
2260
diff
changeset
|
225 |
^ self. |
2179 | 226 |
]. |
227 |
||
2510 | 228 |
view compressMotionEvents:false. |
2179 | 229 |
view ungrabPointer. |
230 |
movedHandle isNil ifTrue:[^ self]. |
|
1871 | 231 |
|
2179 | 232 |
resizeMode notNil ifTrue:[ |
233 |
resizeMode == #active ifTrue:[ |
|
2236 | 234 |
(view snapMode == #both) ifFalse:[ |
235 |
aboveView := view subViews at:movedHandle. |
|
236 |
aboveView objectAttributeAt:#vpext put:(aboveView relativeCorner). |
|
237 |
]. |
|
2252 | 238 |
(UserPreferences current opaqueVariablePanelResizing == true) ifFalse:[ |
239 |
self doResize |
|
240 |
]. |
|
2179 | 241 |
] ifFalse:[ |
242 |
( (layout := view snapLayoutAt:movedHandle) notNil |
|
243 |
and:[layout containsPointX:bx y:by] |
|
244 |
) ifTrue:[ |
|
2236 | 245 |
self doSnapPressedX:bx y:by |
2179 | 246 |
]. |
1871 | 247 |
]. |
2179 | 248 |
]. |
249 |
self pointerLeave:0. |
|
250 |
self pointerEnter:0 x:bx y:by. "check whether mouse on a handle" |
|
2396
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fix for windows MOUSE_MOVE event bug
Claus Gittinger <cg@exept.de>
parents:
2284
diff
changeset
|
251 |
|
8340b529e8ce
fix for windows MOUSE_MOVE event bug
Claus Gittinger <cg@exept.de>
parents:
2284
diff
changeset
|
252 |
"Modified: / 24.8.2001 / 15:35:33 / cg" |
1871 | 253 |
! |
254 |
||
2179 | 255 |
pointerEnter:state x:bx y:by |
2529 | 256 |
|h| |
2179 | 257 |
|
258 |
state == 0 ifTrue:[ |
|
259 |
view snapMode notNil ifTrue:[ |
|
2529 | 260 |
(h := self detectHandleIndexAt:bx y:by) notNil ifTrue:[ |
2179 | 261 |
self buttonMotion:state x:bx y:by |
262 |
] |
|
263 |
] |
|
264 |
] |
|
265 |
! |
|
266 |
||
267 |
pointerLeave:state |
|
268 |
||
269 |
saveCursor notNil ifTrue:[ |
|
270 |
"restore the cursor" |
|
271 |
view cursor:saveCursor. |
|
272 |
saveCursor := nil |
|
273 |
]. |
|
274 |
||
275 |
state == 0 ifTrue:[ |
|
276 |
resizeMode := nil. |
|
277 |
||
278 |
movedHandle notNil ifTrue:[ |
|
279 |
view drawSnapAt:movedHandle. |
|
280 |
movedHandle := nil. |
|
281 |
] |
|
282 |
]. |
|
283 |
! ! |
|
284 |
||
285 |
!VariablePanelController methodsFor:'private'! |
|
286 |
||
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parents:
2005
diff
changeset
|
287 |
checkedHandleMovementX:bx y:by |
2179 | 288 |
"check and return valid position a handle can be placed |
289 |
" |
|
2252 | 290 |
|max min pos subViews halfBarHeight barHeight thisView nextView nextView2| |
2159
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parents:
2005
diff
changeset
|
291 |
|
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parents:
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changeset
|
292 |
subViews := view subViews. |
2252 | 293 |
barHeight := view barHeight. |
2245 | 294 |
"/ halfBarHeight := view barHeight + 1 // 2. |
2252 | 295 |
halfBarHeight := barHeight // 2. |
296 |
||
297 |
thisView := subViews at:movedHandle. |
|
298 |
nextView := subViews at:movedHandle + 1. |
|
299 |
nextView2 := subViews at:movedHandle + 2 ifAbsent:nil. |
|
2159
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make certain, that handles can always be clicked on;
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parents:
2005
diff
changeset
|
300 |
|
2179 | 301 |
view orientation == #vertical ifTrue:[ |
2245 | 302 |
pos := by. |
2252 | 303 |
min := thisView top. |
304 |
nextView2 isNil ifTrue:[ |
|
305 |
max := view height. |
|
306 |
] ifFalse:[ |
|
307 |
max := nextView2 top. |
|
308 |
]. |
|
2159
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make certain, that handles can always be clicked on;
Claus Gittinger <cg@exept.de>
parents:
2005
diff
changeset
|
309 |
] ifFalse:[ |
2245 | 310 |
pos := bx. |
2252 | 311 |
min := thisView left. |
312 |
nextView2 isNil ifTrue:[ |
|
313 |
max := view width. |
|
314 |
] ifFalse:[ |
|
315 |
max := nextView2 left. |
|
316 |
]. |
|
2159
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make certain, that handles can always be clicked on;
Claus Gittinger <cg@exept.de>
parents:
2005
diff
changeset
|
317 |
]. |
2864c0de7f33
make certain, that handles can always be clicked on;
Claus Gittinger <cg@exept.de>
parents:
2005
diff
changeset
|
318 |
|
2260
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2252
diff
changeset
|
319 |
min := min + halfBarHeight "- 1". |
2252 | 320 |
barHeight odd ifTrue:[ min := min + 1 ]. |
2260
ce3be65862db
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parents:
2252
diff
changeset
|
321 |
movedHandle == 1 ifTrue:[ |
ce3be65862db
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parents:
2252
diff
changeset
|
322 |
min := min + view margin |
ce3be65862db
min/max - make certain that handle can still be grabbed
Claus Gittinger <cg@exept.de>
parents:
2252
diff
changeset
|
323 |
]. |
2245 | 324 |
|
325 |
"/ max := max - halfBarHeight. |
|
2252 | 326 |
"/ movedHandle == (subViews size-1) ifTrue:[ |
327 |
"/ max := max - barHeight + 2. |
|
328 |
"/ ] ifFalse:[ |
|
329 |
max := max - halfBarHeight + 1. |
|
330 |
barHeight odd ifTrue:[ max := max - 1 ]. |
|
331 |
"/ ]. |
|
2159
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parents:
2005
diff
changeset
|
332 |
|
2260
ce3be65862db
min/max - make certain that handle can still be grabbed
Claus Gittinger <cg@exept.de>
parents:
2252
diff
changeset
|
333 |
movedHandle == (subViews size-1) ifTrue:[ |
ce3be65862db
min/max - make certain that handle can still be grabbed
Claus Gittinger <cg@exept.de>
parents:
2252
diff
changeset
|
334 |
max := max - view margin |
ce3be65862db
min/max - make certain that handle can still be grabbed
Claus Gittinger <cg@exept.de>
parents:
2252
diff
changeset
|
335 |
]. |
ce3be65862db
min/max - make certain that handle can still be grabbed
Claus Gittinger <cg@exept.de>
parents:
2252
diff
changeset
|
336 |
|
2179 | 337 |
pos < min ifTrue:[^ min]. |
2252 | 338 |
pos > max ifTrue:[^ max]. |
339 |
^ pos |
|
2159
2864c0de7f33
make certain, that handles can always be clicked on;
Claus Gittinger <cg@exept.de>
parents:
2005
diff
changeset
|
340 |
! |
2864c0de7f33
make certain, that handles can always be clicked on;
Claus Gittinger <cg@exept.de>
parents:
2005
diff
changeset
|
341 |
|
2179 | 342 |
detectHandleIndexAt:x y:y |
343 |
"returns the handle index at position x@y or nil if none detected |
|
344 |
" |
|
345 |
|subViews |
|
346 |
size "{ Class: SmallInteger }"| |
|
347 |
||
348 |
subViews := view subViews. |
|
349 |
||
350 |
(size := subViews size) > 1 ifTrue:[ |
|
351 |
view orientation == #vertical ifTrue:[ |
|
352 |
2 to:size do:[:i| |
|
353 |
(subViews at:i) top >= y ifTrue:[ |
|
354 |
^ (subViews at:(i-1)) bottom < y ifTrue:[i-1] ifFalse:[nil] |
|
355 |
] |
|
356 |
] |
|
357 |
] ifFalse:[ |
|
358 |
2 to:size do:[:i| |
|
359 |
(subViews at:i) left >= x ifTrue:[ |
|
360 |
^ (subViews at:(i-1)) right < x ifTrue:[i-1] ifFalse:[nil] |
|
361 |
] |
|
362 |
] |
|
363 |
] |
|
364 |
]. |
|
365 |
^ nil |
|
366 |
||
367 |
||
368 |
! ! |
|
1871 | 369 |
|
2179 | 370 |
!VariablePanelController methodsFor:'queries'! |
371 |
||
2529 | 372 |
isSnapEntered |
373 |
^ saveCursor notNil |
|
374 |
! |
|
375 |
||
2179 | 376 |
isSnapEntered:anIndex |
377 |
^ saveCursor notNil and:[anIndex == movedHandle] |
|
378 |
||
379 |
! |
|
380 |
||
381 |
isSnapPressed |
|
382 |
^ resizeMode notNil and:[resizeMode ~~ #active] |
|
383 |
! ! |
|
384 |
||
385 |
!VariablePanelController methodsFor:'user operations'! |
|
104 | 386 |
|
2179 | 387 |
doInvertHandle |
388 |
"invert a handle |
|
389 |
" |
|
390 |
|pos| |
|
391 |
||
392 |
pos := prevPos - (view barHeight + 1 // 2). |
|
393 |
view invertHandleBarAtX:pos y:pos. |
|
394 |
! |
|
395 |
||
396 |
doResize |
|
397 |
"perform the resize |
|
398 |
" |
|
399 |
|aboveView belowView aboveIndex belowIndex newRelPos subViews isVertical |
|
400 |
opaqueResizing newCorner newOrigin halfBarHg| |
|
401 |
||
402 |
opaqueResizing := UserPreferences current opaqueVariablePanelResizing == true. |
|
104 | 403 |
|
1871 | 404 |
"undo the last invert" |
2179 | 405 |
(resizeMode == #active and:[opaqueResizing not]) ifTrue:[ |
406 |
self doInvertHandle |
|
1871 | 407 |
]. |
2179 | 408 |
"check if position changed" |
409 |
prevPos == clickPos ifTrue:[^ self]. |
|
104 | 410 |
|
2179 | 411 |
"compute the new relative origins & corners" |
412 |
isVertical := view orientation == #vertical. |
|
1871 | 413 |
aboveIndex := movedHandle. |
414 |
belowIndex := movedHandle + 1. |
|
2179 | 415 |
subViews := view subViews. |
416 |
aboveView := subViews at:aboveIndex. |
|
417 |
belowView := subViews at:belowIndex. |
|
418 |
halfBarHg := view barHeight + 1 // 2. |
|
1626
3013631d4384
do nothing if pointer was never moved;
Claus Gittinger <cg@exept.de>
parents:
1483
diff
changeset
|
419 |
|
2179 | 420 |
isVertical ifFalse:[ |
421 |
"X complains badly if you try to create/resize a view with a dimension <= 0 |
|
422 |
" |
|
423 |
prevPos - halfBarHg == aboveView left ifTrue:[prevPos := prevPos + 1]. |
|
104 | 424 |
|
2179 | 425 |
newRelPos := (prevPos / view width) asFloat. |
426 |
newCorner := newRelPos @ aboveView relativeCorner y. |
|
2159
2864c0de7f33
make certain, that handles can always be clicked on;
Claus Gittinger <cg@exept.de>
parents:
2005
diff
changeset
|
427 |
newOrigin := newRelPos @ belowView relativeOrigin y. |
2179 | 428 |
] ifTrue:[ |
429 |
"X complains badly if you try to create/resize a view with a dimension <= 0 |
|
430 |
" |
|
431 |
prevPos - halfBarHg == aboveView top ifTrue:[prevPos := prevPos + 1]. |
|
432 |
||
433 |
newRelPos := (prevPos / view height) asFloat. |
|
434 |
newCorner := aboveView relativeCorner x @ newRelPos. |
|
2159
2864c0de7f33
make certain, that handles can always be clicked on;
Claus Gittinger <cg@exept.de>
parents:
2005
diff
changeset
|
435 |
newOrigin := belowView relativeOrigin x @ newRelPos. |
1871 | 436 |
]. |
2179 | 437 |
view lockRedraw. |
438 |
||
1871 | 439 |
aboveView relativeCorner:newCorner. |
440 |
belowView relativeOrigin:newOrigin. |
|
104 | 441 |
|
2179 | 442 |
prevPos > clickPos ifTrue:[ "above view grows" |
443 |
view resizeSubviewsFrom:aboveIndex to:belowIndex. |
|
104 | 444 |
] ifFalse:[ |
2179 | 445 |
view resizeSubviewsFrom:belowIndex to:aboveIndex |
1871 | 446 |
]. |
447 |
view unlockRedraw. |
|
1626
3013631d4384
do nothing if pointer was never moved;
Claus Gittinger <cg@exept.de>
parents:
1483
diff
changeset
|
448 |
|
2179 | 449 |
prevPos := isVertical ifTrue:[aboveView bottom] ifFalse:[aboveView right]. |
450 |
prevPos := prevPos + (view barHeight + 1 // 2). |
|
1483 | 451 |
! |
452 |
||
2236 | 453 |
doSnapPressedX:x y:y |
2179 | 454 |
"perform the snap press |
455 |
" |
|
2236 | 456 |
|layout handle curRCorner prvRCorner isVertical newPos mode isMax isMin doRememberPosition| |
2179 | 457 |
|
458 |
(mode := view snapMode) isNil ifTrue:[^ self]. |
|
459 |
||
460 |
layout := view snapLayoutAt:movedHandle. |
|
461 |
handle := view subViews at:movedHandle. |
|
462 |
isVertical := view orientation == #vertical. |
|
2236 | 463 |
|
2179 | 464 |
curRCorner := handle relativeCorner. |
465 |
prvRCorner := handle objectAttributeAt:#vpext. |
|
466 |
||
2236 | 467 |
isMax := isMin := false. |
468 |
mode == #both ifTrue:[ |
|
469 |
isVertical ifTrue:[ |
|
470 |
isMax := x > (layout right - (layout width//3)). |
|
471 |
isMin := x < (layout left + (layout width//3)). |
|
472 |
] ifFalse:[ |
|
2239 | 473 |
isMin := y > (layout bottom - (layout height//3)). |
474 |
isMax := y < (layout top + (layout height//3)). |
|
2236 | 475 |
]. |
476 |
handle objectAttributeAt:#snapPart put:(isMin ifTrue:[#left] ifFalse:[ isMax ifTrue:[#right] ifFalse:[#middle]]). |
|
477 |
doRememberPosition := (isMin or:[isMax]) and:[prvRCorner isNil]. |
|
478 |
] ifFalse:[ |
|
479 |
isMax := view snapAtIndexWillGrow:movedHandle. |
|
480 |
isMin := isMax not. |
|
481 |
isMax ifTrue:[ |
|
482 |
isMax := prvRCorner isNil or:[mode ~~ #min] |
|
483 |
] ifFalse:[ |
|
484 |
isMin := prvRCorner isNil or:[mode ~~ #max] |
|
485 |
]. |
|
486 |
doRememberPosition := true. |
|
487 |
]. |
|
488 |
||
489 |
isMax ifTrue:[ |
|
490 |
newPos := 99999 "set extent to max" |
|
491 |
] ifFalse:[ |
|
492 |
isMin ifTrue:[ |
|
493 |
newPos := 0 "set extent to min" |
|
494 |
] ifFalse:[ |
|
495 |
newPos := nil "restore previous extent" |
|
496 |
] |
|
2179 | 497 |
]. |
498 |
||
499 |
newPos isNil ifTrue:[ |
|
2236 | 500 |
prvRCorner isNil ifTrue:[ |
501 |
"/ nothing to do |
|
502 |
^ self |
|
503 |
]. |
|
504 |
||
2179 | 505 |
"restore previous extent" |
506 |
newPos := isVertical ifTrue:[view height * prvRCorner y] |
|
507 |
ifFalse:[view width * prvRCorner x]. |
|
508 |
||
509 |
newPos := self checkedHandleMovementX:newPos y:newPos. |
|
510 |
||
511 |
(prevPos - newPos) abs < 2 ifTrue:[ |
|
512 |
"cannot resize; set extent to min or max dependent on the current extent" |
|
513 |
isVertical ifTrue:[ |
|
514 |
newPos := handle height > 2 ifTrue:[0] ifFalse:[99999] |
|
515 |
] ifFalse:[ |
|
516 |
newPos := handle width > 2 ifTrue:[0] ifFalse:[99999] |
|
517 |
]. |
|
518 |
newPos := self checkedHandleMovementX:newPos y:newPos. |
|
519 |
]. |
|
2236 | 520 |
|
521 |
mode == #both ifTrue:[ |
|
522 |
handle objectAttributeAt:#vpext put:nil. "clear previous corner" |
|
523 |
doRememberPosition := false. |
|
524 |
]. |
|
525 |
||
2179 | 526 |
] ifFalse:[ |
527 |
newPos := self checkedHandleMovementX:newPos y:newPos |
|
528 |
]. |
|
529 |
||
530 |
(newPos - prevPos) abs < 2 ifFalse:[ |
|
2236 | 531 |
doRememberPosition ifTrue:[ |
532 |
handle objectAttributeAt:#vpext put:curRCorner. "save previous corner" |
|
533 |
]. |
|
2179 | 534 |
prevPos := newPos. |
535 |
self doResize. |
|
1483 | 536 |
] |
200 | 537 |
! ! |
104 | 538 |
|
203 | 539 |
!VariablePanelController class methodsFor:'documentation'! |
540 |
||
541 |
version |
|
2529 | 542 |
^ '$Header: /cvs/stx/stx/libwidg/VariablePanelController.st,v 1.37 2002-05-02 09:18:28 cg Exp $' |
2179 | 543 |
|
544 |
||
203 | 545 |
! ! |